Many ODROID-XU3/4 user use USB wifi dongle with RTL8188CUS chipset purchased from their local electronic store. And we were asked how they can use their wifi dongle on ODROID-XU3/4 and answered to add a like with below at the end of wifi_id_list.txt with their wifi dongle's VID & PID. From Android release v2.4, we've added many USB wifi dongles known product by default to the file, wifi_id_list. These list are collected from the driver source code itself supported and we shipped the driver, 8192cu.ko.